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"url": "https://numbas.mathcentre.ac.uk/api/questions/12044/?format=api",
"name": "Find sample standard deviations of two samples",
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"full_name": "Newcastle University Mathematics and Statistics",
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"metadata": {
"notes": "<p><strong>11/07/2012:</strong></p>\n <p>Added tags.</p>\n <p>Set new variable tol=0 for all numeric input so that answers have to be accurate to 1 decimal place.</p>\n <p>Testing calculation not yet possible due to stats extension unavailability.</p>\n <p><strong>23/07/2012:</strong></p>\n <p>Corrected error in calculation of variance of Total Score. The variable scores was not used and so mean and variance were not correct.</p>\n <p>Checked calculations. OK.</p>\n <p>Added description.</p>\n <p><strong>1/08/2012:</strong></p>\n <p>Added tags.</p>\n <p>Question appears to be working correctly.</p>\n <p><strong>19/12/2012:</strong></p>\n <p>Changed stats functions to the ones from the new stats extension.</p>\n <p>Checked calculations.</p>\n <p>Added tested1 tag.</p>\n <p><strong>21/12/2012:</strong></p>\n <p>Checked rounding, OK. Added cr1 tag.</p>",
"licence": "Creative Commons Attribution 4.0 International",
"description": "<p>Two ordered data sets, each with 10 numbers. Find the sample standard deviation for each and for their sum.</p>"
},
"status": null,
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}
